On beaching our raft downriver the guides managed to throw our freeloading passenger into the river.

FORBES: Know What to Fear: Where are you misplacing your fear?

The tide is expected to rise until 2330 BST before it starts dropping which is when the animal could be in danger of beaching.

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The system evolves constantly and 800 units have to be deployed every year to complete and maintain the array, compensating losses due to ice, beaching, design cycle (4-5 years) and cover areas that are far from well travelled routes.

UNESCO: Indigenous Peoples